Brace for well-drilling tools



De. 23, 1924. 1,520,168- C. H. BERGQUIST v BRACE FOR WELL DRILLING TOOLS Filed J'afl. 51. 1924 I I i 1 6 i g Qzl.

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ATTORNEY IBY" I Patented Dec. 23, 1924.

CHARLES H. snneoorsr, or OKMULGEE, OKLAHOMA, nssmnon or EMERY A. room.

ONE-HALF fro BRACE FOR -WELL-I)BILLING TOOLS.

Application filed January 31, 1924. Serial No. 689,699.

9 To all whom. it may concern:

Be it known that CHARLES H. Bnnoonrsr, a citizen of the United States, residing at ()kmulgee. in'thc county of ()kmulgee and Stale of Oklahoma, has invented new and useful Improvements iii Braces for \Vell- Drilling Tools, of which the following is a speei lication.

This inventionrelates to tool braces espe- "as wells. b

The toolbraces now on the market are not readily adjustable for use in connection with an the derrick circle or trac i.

tools of dill'erent diameters and because the body of the brace is usually formed of two telescopic 'sections the brace does not possesS the desired strength or simplicity.

"lhereiore, an iuiporlaut object of this invention is to provide a tool brace which may .be readily and conveniently applied to a string oi tools and the floor circle or track during the ynscrewiug or screwing up of thetool joints and which may be quickly and easily adjusted for use in connection with too 5 ol' dill'ereut diameters.

A further and equally important aim oi numerals are employed to! designate 'like',

parts --throughout the sa1ne,"-

Figure 1 is aperspective il ltustrating the improved brace applied to a ring :of tools Figure 2 is a side elevation of the-brace jabplied, the track being 'sh Kvn in section. f lE igure fi is a perspective gt anattaching jdtg embodied in the invenfiona In the drawingwherein for the purpose f illustration is shown a preferred embodiment of the invention, the numeral 5'des-' ignates a string of tools consisting of a plurality of sections threadedly connected as cially adapted for use indrilling oil and at 6 and having square portions 7 for engagement by relatively stationary andmovable wrenches 8. and 9' respectively.

;Figure 1 illustrates that the wrench 8 is engaged with a stop 10 at one end of the derrick circle or track 11 and is held against turning in one direction therebya The wrench 8 holds the lower portion of the string of tools stationary while the upper joint is loosened by the wrench 9.

As is ,well known in the art the handle of the wrench 9 is engaged by what might be said to be a driving member 10 having;

a manually operated actuating lever 12. It will be seen that the operation of the lever 19. results in the travel of the driving mem ber 10 whereby the wrench 9 is turned for breaking the joint.

The parts thus far described are old and well known in the industry and the inven. tion forming the subject matter of this ap-Q plication consists of a rigid one piece body) 1% having one end flattened to provide a, tool engaging portion 15. However, it is to be understood that the inner end of: the body 15 may be provided with any suitable tool engaging means" without departing from the spirit of this invention.

The outer portion of the rigid one-piece l. ody ll is providedalongits upper edge with notches or teeth 17 for securing an attaching dog 18 in the desired position on the body. Figure 3 plainly illustrates that the shank 20 of the dog 18 is curved lon 'itudinally and is provided with a longitudinal slot 21 which freely receives the outer portion of the body so that the dog may be quickly positioned at the desired point on the body. j

In carrying out the invention the attaching. dog 18 is provided with an approlxi ma'tely L-sha ped base 22 which as illustrated in- Figure 2 embraces one of the fiangesrof the track and therefore securely and posi tively connects the rigid body 142 to the track. It might be said that one end portion of the shank 20 co-operates vwith the L-.

' shaped base-- 22 in the formation of a socket for the reception of the flange of the derrick circle. A suitable lug 25 is' carried by the outer portion of the body 14 and co-operates with a handle 26 in holding the attack ing dog on the body. o i

l the brace and the track.

ieh

to the shop and sharpen or renew the tool engaging In operation the inner end of the brace is engaged with the tool as illustrated in Figure '1 and the attaching dog is adjusted on the brace so that the L-shaped base will embrace the flange of the track whereby the brace is mounted in the manner illustrated 'in the drawing. It is believed to be clear that the brace is engaged with the tool betlghten the connection between the track and the brace. Briefly, the greater the strain on the brace, the tighter the connection between This positively prevents the brace from getting out of place during the unscrewing of the joint.

A further and equally important advantage resulting from fulcruming the brace he upper side of the track resides in .the tool may 'Figure 2 illustrates that the body of the piece construction and consehaving the necessary strength to resist strain during use.

' Attention is especially directed to the fact that the hardened steel flat tool engaging portion 15 may when derrick. It is not necessary to take the brace ul or worn andcconsequcntly much time and expense is saved. that the tool braces now on the market are in most cases provided with more or less troublesome tool engaging portions and they wear rapidly so'that frequ nt repair and replacement is necessary.

aving thus described the invention what is claimed is 1. A tool brace comprising a rigid one piece body aving one and provided with means for engaging a string of tools and the rick circle.

' brace comprising a body having and aving'an approximately portion when the same becomes d It might be added f other end provided with spaced notches, and an attaching dog having a shank freely receiving said body and selectively seated in one of said notches, said attaching dog being provided With a substantially L-shaped der rick circle embracing portion, said rigid one piece body being adapted to extend over and fulcrum on the derrick circle. A tool brace comprising a body pro vided with means for engaging a string of tools, and an attaching dog having a shank freely receiving and adjustable on said body and provided with a derrick circle embracin'g portion, said body being adapted to extend over and engage the derrick circle.

3. A tool brace comprising a body having its inner end provided with tool engaging means, and a d by the outer portion of the body and having a derrick circle engaging member adapted to connect the body to the derrick circle, said body being adapted to extend over and engage said derderrick circle tool cngagmg means, and an attaching member adj ustably carried by the outer portion of the body -shaped derengaging and embracing portion, said body being adapted to extend over and engage a derrick circle and being provided with means to hold said attaching member in an adjusted position.

lv brace comprising a rigid one piece body having its upperedge portion provided with notches, an attaching dog having a shank freely receiving said body 4. A combined tool and and adapted to be selectively received in one of said notches, said dog being provided with derrick circle engaging means adapted to connect the derrick circle to'thc body, and means to limit the endwise movement of said shankon said one piece body.

6. A tool brace comprising a body having tool engaging means and having a series of notches, and an attaching dog adapted to be selectively engaged said notches in one of and having derrick circle engaging means,

g said bo y being adapted to extend over and engage'a derrick circle;

7. A tool and derrick circle brace comprising a rigid bOdy'adapted to extend over a errick circle, and a. derrick circle engaging dog adjustable on the body whereby the efective, length of the body'may be varied, one end of the brace being provided with means for engaging a string of tools, said dog being provided with an angularly directed terminal portion adapted to engage an under-face oftho derrick circle.

tool and derrick circle brace comderrick circle, and a dog carried by the body and lltlVlDQ means to en a e an underface I v I p a of the derrick circle whereby tool pressure onthe body tightens the connection of the dog with the derrick circle.

' the derrick circle, one end of the body being provided with tool engaging means. I

10. A tool brace comprising a 'body hev, ing one end flattened and sharpened'to provide a single transversely extendingisharp e'nededge adapted t0,bite into a string of tools"whereby the body issecurely connected to, the string of tools. i

11. A tool brace comprising a body having one end sharpened 'to define an edge adaptedvto engage a string of tools, and

means carried by the other end-of the body for anchoring the same, said edgccons'titutbrace.

-20 ing the sole tool engaging means of the" CHARLES H. BERGQUIST. 

